bar1 is a incomplete bar.
This piece has Cantus Firmus(Ut, re, mi, fa, sol, la) Style.
bar1-4 : Opening
bar5-16 : First Cantus Firmus - Alto
bar17-28 : Second Cantus Firmus - Tenor
bar29 : Bridge bar
bar30-41 : Third Cantus Firmus - Soprano
bar42-44 : Ending